title: A note regarding 'random effects' - authors' response.
authors.affiliation: MRC Clinical Trials Unit, United Kingdom. brk@ctu.mrc.ac.uk.
authors.forename: Brennan C
authors.initials: BC
authors.lastname: Kahan
authors.forename: Tim P
authors.initials: TP
authors.lastname: Morris
mesh_terms: D006801:Humans; D015337:Multicenter Studies as Topic / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*